Allen Competitor 12-Gauge Choke Tube Wrench for Shotguns Crank Style Adjustable Diameter Aluminum/Steel/Plastic Black/Red. The Thumb screw adjustment makes a tight fit possible for removing stubborn choke tubes. The crank handle provides extra torque and comfort. The compact size makes storage easy. For 12 Gauge only. Made from Aluminum Steel and plastic: Approximate Dimensions 2.75 x 3 inches. Specifications for Allen Competitor 12-Gauge Choke Tube Wrench for Shotguns: Manufacturer: Allen Fabric/Material: Steel Gauge: 12 Quantity: 1 Dimensions: 3.20 x 0.90 x 2.60 in Color: Black/Red/Silver Features of Allen Competitor 12-Gauge Choke Tube Wrench Easy to use adjust just once Crank handle is easy on fingers Adjustable tube diameter Soft rubber choke tube gripper 12 Gauge only Package Contents: Allen Competitor 12-Gauge Choke Tube Wrench for Shotguns Allen 8336: Competitor 12-Gauge Choke Tube Wrench for Shotguns Crank Style Adjustable Diameter Aluminum/Steel/Plastic Black/Red